WO2009084609A4 - System, method, apparatus and program storage medium for the generation and transmission of delivery confirmation messages in a wireless communication system - Google Patents

System, method, apparatus and program storage medium for the generation and transmission of delivery confirmation messages in a wireless communication system Download PDF

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Publication number
WO2009084609A4
WO2009084609A4 PCT/JP2008/073666 JP2008073666W WO2009084609A4 WO 2009084609 A4 WO2009084609 A4 WO 2009084609A4 JP 2008073666 W JP2008073666 W JP 2008073666W WO 2009084609 A4 WO2009084609 A4 WO 2009084609A4
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WO
WIPO (PCT)
Prior art keywords
frames
frequency channels
reception
channel
communication apparatus
Prior art date
Application number
PCT/JP2008/073666
Other languages
French (fr)
Other versions
WO2009084609A2 (en
WO2009084609A3 (en
Inventor
Toshihisa Nabetani
Kiyoshi Toshimitsu
Ryoko Matsuo
Tatsuma Hirano
Original Assignee
Kabushiki Kaisha Toshiba
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Toshiba filed Critical Kabushiki Kaisha Toshiba
Priority to US12/438,848 priority Critical patent/US8139506B2/en
Publication of WO2009084609A2 publication Critical patent/WO2009084609A2/en
Publication of WO2009084609A3 publication Critical patent/WO2009084609A3/en
Publication of WO2009084609A4 publication Critical patent/WO2009084609A4/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1628—List acknowledgements, i.e. the acknowledgement message consisting of a list of identifiers, e.g. of sequence numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Small-Scale Networks (AREA)

Abstract

A wireless communication system includes a first wireless communication apparatus and a second wireless communication apparatus which communicate with each other. The first wireless communication apparatus simultaneously transmits frames to the second wireless communication apparatus through first to nth (n is an integer of 2 or greater) frequency channels, the second wireless communication apparatus receives the frames from the first wireless communication apparatus through the first to nth frequency channels, judges success or failure of reception of each of the frames by performing error detection, creates delivery confirmation frame including information indicating success or failure of reception of each of the frames, and transmits the delivery confirmation frame through x specific channel (x is an integer in a range from 1 or more to n-1 or fewer) of the first to nth frequency channels to the first wireless communication apparatus a predetermined time after reception of the frames.

Claims

36AMENDED CLAIMS received by the International Bureau on 14 September 2009 (14.09.2009)
1. (Amended) A wireless communication apparatus, comprising : a reception unit configured to simultaneously receive frames through first to nth (n is an integer of 2 or greater) frequency channels from an other communication apparatus; a error detection unit configured to perform error detection on the frames to judge success or failure of reception of each of the frames; a delivery confirmation frame creator configured to create a delivery confirmation frame including information indicating success or failure of reception of each of the frames; and a transmission unit configured to transmit the delivery confirmation frame through x specific channel (x is an integer in a range from 1 or more to n-1 or fewer) of the first to nth frequency channels to the other communication apparatus after a predetermined time from reception of the frames, wherein total transmission power of the first to nth frequency channels by the other communication apparatus becomes to first transmission power, and the transmission unit performs transmission on the specific channel so that total transmission power of the specific channel becomes the first transmission power.
2. (Cancelled)
3. (Cancelled) 37
4. (Amended) The apparatus according to claim 1, wherein the specific channel for transmitting the delivery confirmation frame is determined in advance.
5. (Amended) The apparatus according to claim 1, wherein the receiving unit communicates with an access point configured to select the specific channel from among the first to nth frequency channels and broadcast the selected specific channel by using broadcast frames, and obtains information of the specific channel by receiving the broadcast frames..
6. (Amended) The apparatus according to claim 1, wherein the receiving unit receives information of the specific channel from the other communication apparatus through at least one of the frames to be transmitted through the first to nth frequency channels.
7. (Amended) The apparatus according to claim 1, further comprising : a channel selection unit configured to select the specific channel from among frequency channels which have succeeded in reception of the frames.
8. (Cancelled)
9. (Amended) A wireless communication apparatus, comprising: a transmission unit configured to simultaneously transmit frames to an other communication apparatus through first to nth (n is an integer of 2 or greater) frequency channels; a channel selection unit configured to select x specific channel (x is an integer in a range from 1 or more to n-1 or less) from among the first to nth frequency channels; a channel reporting unit configured to report the specific channel to the other communication apparatus; a control unit configured to control to wait for reception of a delivery confirmation frame including information indicating success or failure of reception of each of the frames at the specific channel. a reception unit configured to receive the delivery confirmation frame through the specific channel from the other communication apparatus after a predetermined time from transmission of the frames; an analyzer configured to analyze the delivery confirmation frame to detect success or failure of reception of each of the frames; and a determining unit configured to determine at least one of a frame to be transmitted subsequently to the other communication apparatus according to the success or failure of reception of each of the frames; wherein the transmission unit transmits the determined frame through at least one of a frequency channel from among the first to nth frequency channels.
10. (Cancelled) 39
11. (Amended)The apparatus according to claim 9, wherein the channel reporting unit reports the specific channel by including information of the specific channel in at least one of the frames to be transmitted through the first to nth frequency channels.
12. (Amended)The apparatus according to claim 9, wherein the channel selection unit selects n-1 or less frequency channels from among the first to nth frequency channels in ascending order of channel utilization rates, as the specific channel.
13. (Amended)The apparatus according to claim 12, wherein the channel selection unit calculates the channel utilization rates according to rates at which the frequency channels are busy for a constant period based on a carrier sensing.
14. The apparatus according to claim 9, further comprising: a period setting which sets a period during which a delivery confirmation frame can be returned, to a predetermined field of each frame to be transmitted through the first to nth frequency channels, wherein the transmission unit transmits the frames to which the period is set so that during the period, another communication apparatuses are inhibited to transmit a frame on the first to nth frequency channels. 40
15. (Cancelled)
16. (Cancelled)
41
17. (Amended) A wireless communication apparatus, comprising: a reception unit configured to simultaneously receive frames through first to nth (n is an integer of 2 or greater) frequency channels from an other communication apparatus; a error detection unit configured to perform error detection on the frames to judge success or failure of reception of each of the frames; a delivery confirmation frame creator configured to create a delivery confirmation frame including information indicating success or failure of reception of each of the frames; a channel selection unit configured to select x specific channel (x is an integer in a range from 1 or more to n-1 or fewer) from among frequency channels which have succeeded in reception of the frames; and a transmission unit configured to transmit the delivery confirmation frame through the specific channel (x is an integer in a range from 1 or more to n-1 or fewer) of the first to nth frequency channels to the other communication apparatus after a predetermined time from reception of the frames.
18. (Cancelled)
19. (Cancelled)
20. (Amended) The apparatus according to claim 17, wherein the channel selection unit selects n-1 or less frequency 42
channels from among the frequency channels which has succeeded in the reception in ascending order of channel utilization rates, as the specific channel.
21. The apparatus according to claim 20, wherein the channel selection unit calculates the channel utilization rates according to rates at which the frequency channels are busy for a constant period based on a carrier sensing.
22. (Cancelled)
23. (Cancelled)
PCT/JP2008/073666 2007-12-27 2008-12-18 System, method, apparatus and program storage medium for the generation and transmission of delivery confirmation messages in a wireless communication system WO2009084609A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/438,848 US8139506B2 (en) 2007-12-27 2008-12-18 Wireless communication apparatus for data communication through two or more channels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-336506 2007-12-27
JP2007336506A JP5017089B2 (en) 2007-12-27 2007-12-27 Wireless communication system, wireless communication method, wireless communication apparatus, and communication program

Publications (3)

Publication Number Publication Date
WO2009084609A2 WO2009084609A2 (en) 2009-07-09
WO2009084609A3 WO2009084609A3 (en) 2009-08-27
WO2009084609A4 true WO2009084609A4 (en) 2010-01-07

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Country Status (3)

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US (1) US8139506B2 (en)
JP (1) JP5017089B2 (en)
WO (1) WO2009084609A2 (en)

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Also Published As

Publication number Publication date
JP2009159406A (en) 2009-07-16
US8139506B2 (en) 2012-03-20
US20110038262A1 (en) 2011-02-17
WO2009084609A2 (en) 2009-07-09
WO2009084609A3 (en) 2009-08-27
JP5017089B2 (en) 2012-09-05

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